select count(1) from sys_role_menu where menu_id = #{menuId} delete from sys_role_menu where role_id=#{roleId} delete from sys_role_menu where role_id in #{roleId} delete from sys_role_menu where role_id in #{roleId} insert into sys_role_menu(id, role_id, menu_id) values (#{item.id}, #{item.roleId}, #{item.menuId})